12637637625 has 32 divisors (see below), whose sum is σ = 21237300864. Its totient is φ = 6673320000.

The previous prime is 12637637591. The next prime is 12637637627. The reversal of 12637637625 is 52673673621.

It is not a de Polignac number, because 12637637625 - 2¹⁶ = 12637572089 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12637637627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128959 + ... + 204708.

It is an arithmetic number, because the mean of its divisors is an integer number (663665652).

Almost surely, 2^12637637625 is an apocalyptic number.

12637637625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12637637625 is a deficient number, since it is larger than the sum of its proper divisors (8599663239).

12637637625 is a wasteful number, since it uses less digits than its factorization.

12637637625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333786 (or 333776 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 48.

The spelling of 12637637625 in words is "twelve billion, six hundred thirty-seven million, six hundred thirty-seven thousand, six hundred twenty-five".